Home / 143,680.14-198,270.72-80,006.58

Finding the Fourth Proportional to 143,680.14, 198,270.72 and 80,006.58

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Solution

The fourth proportional to 143,680.14, 198,270.72 and 80,006.58 is: 110,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,680.14 : 198,270.72 = 80,006.58 : x
  2. Step 2: Convert to fraction form
    143,680.14/198,270.72 = 80,006.58/x
  3. Step 3: Cross multiply
    143,680.14x = 198,270.72 × 80,006.58
  4. Step 4: Simplify right side
    143,680.14x = 15,862,962,221.34
  5. Step 5: Solve for x
    x = 15,862,962,221.34/143,680.14
  6. Step 6: Final answer
    x = 110,404.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.